Poweb jack



T. H. SHEETS Oct.y 28 1924.

POWER JACK 2 Sheets-Sheet 1 Filed Oct.

...2:11 I l l..

2 8 2, ,3 l 5, 1 S T E E H S H.

Oct. 28 1924.

POWER JACK Filed Oct. '4, 1923 2 Sheets-Sheet 2 abbot weg Paaaed on. 28,'1924.-

namur onirica,

THOMAS H. SHEETS, OF SHINGLE, CALIFORNIA.

POWER JACK.

Application niea'ocrober 4, 1923. serial No. 666,504.

1 o aZL who/mit may concern:

Be itknow'n that I, THOMAS citizen of the United States of America, fe-

siding at Shin le, in the county of'Eldorado and State of alifornia,have invented certain new and useful Improvements in -Power Jacks, ofwhich the following is a specification.

This 'invention relates to improvements in automobile jacks and hasparti-cular reference'to power operated types.

An important object of the invention -is to provide a jack of' thementioned type which may beemployed for tire repair o1 replacement workandds capableof being operated entirely from-the drivers seat in thevehicle.

A further object of the invention `is to provide adevice which isadapted for movf' ing one end of an automobile laterally in eitherdirection for the purpose of turning' the same around in a small spa foruconvenience in moving it in garage or show rooms, and for getting into'and out of lim*- ited parkingspaces in respect'to curbs orthe like.

A further object of the invention. is to provide a jackwhich is capableof elevating the wheels at one end of an automgbile of ofthe ground andtaking i motor power -therefrom for moving the said vehicle laterally ineither direction. v

Other subjects and advantages of the invention will be apparent duringthe course of the following description.

' In the accompanying'drawings forming a part of this speciicatlonand inwhichllke numerals are employed for designatinglike 'parts throughoutthe same, Figure 1 is a diagrammatipal view of a fragmentary portion ofan automobile run-l ning gear and power plant with my improved jackproper associa-ted therewith,

Figure 2 isa rear elevational view of the portion of 4my jackassociated/with the rear wheels of the vehicle,

Figure 3 is. a fragmentary view, partly in elevation 'and' partly insection, taken upon line III- III of Figure v1,

Figure 4 is a fragmentary elevational view, partly in section, takenupon line IV-IV of Figure 1,

Figure 5- is a fragmentary portion of th'e device which is partly inelevation and partly in section and shows that portion of H. SHEETS, a

partly VII- VII of Figure 5, and

vehicle supporting portion of the same for causing the latter 'oooperatively engagethe ground or road-bed,

. Figure 6 is a fragmentary view taken-upon line VI-.VI of Figure 5,

' Figure 7 isl a vertical,v sectional View, in elevation, taken uponline the device which operates directly upon lthe u nates the chassis orframe of an automobile which is provided with a rear axle 6,differential 7, rear wheels 8, drive shaft 9,

transmission 10, power plant 11, and Hy bar 13 which is positionedsubstantially in transverse alignment/with the forward edge Suitablysecured to the chassis 5 and extending transversely thereof is asupporting of the rear wheels 8. This supporting bar porting thestub-shafts 16 `4which are provided with a beveled gear 17 at theirupper ,ends and the socket portions of a universal joint 18 at theirlowerends.

Depending fromthe extreme ends of the supporting bar 13 are brackets 19having or 20, as shown. The standard 20 is provided with a yoke shapedlower end 21 to which is journaled the disk wheel 22 having the ringbifurcated or yoke shaped lower ends which .are pivotally connected totheV standard 20, es

at its o uter end the stub shaft 25 w ich is provided with afixed,lsection wheel or disk 26 at its `upper end and a wormgear 27 atits lower end. e The laterally extending bracket 24'is provided with anextension 28 which lsupports a stub shaft 29 having a beveled gearl 30'at one end that constantly meshes with the ring gear 23 formed on thedisk wheel 22, The opposite end of the stub shaft 29 is provided with aworm gear, not shown, which is constantly in mesh with the worm gear 27carried by the stub shaft 25.

`The standard 20 is further provided, at a point substantially midway ofits length, with an internally screw threaded tubular member 31 which isp-ivotally connected to the said standard and threadedly engages thescrew 32 which is provided at its outer end with the ball portion of theuniversal joint 18.

The standard 20a is provided with'a yoke shaped bottom end 33 whichrotatably supports the diskwheel 34 in the manner illustrated, and isprovided with a laterally extending bracket 35 having a head 36 slidablymounted on an extension of the said bracket and provided with a springelement 37 which normally forces the said head 36 outwardly upon thesaid e-xtension. This standard 2Oa is pivotally connected to theinternally screw threaded tubular member 38 having threadedly receivedtherein the screw 39 which is provided at its outer end with the ballportion of the universal jointv 18.

The depending ange 14 is provided with a pair of transversely spacedjournal bearings 40 which are adapted for rotatably supporting thetransversely extending shaftI 41 which is provided at its outer end withbeveled gears 42 'which are constantly inA mesh with the beveled gears17. The trans;

'versely extending shaft 41 is further provided with a worm gear43 whichis positioned in proximity to one of the journal bearings 40.

Referring particularly to Figures 1, 3' .and 4, there is shown a bracket-plate 44 which is suitably secured to one side of the transmissionhousing 10 and is providedlwith a cut out portion 45 positionedinproximity to the said transmission housing. Extending longitudinallyof the vehicle frame 5 is a driven shaft 46which is supported at itsforward end by the jour- A nal bearings 47 and 48 positioned uponopposite sides of the cut out portion 45. The rear end of the drivenshaft 46 is journaledl in the depending iiange 14 carried by thetransversely extending supporting bar 13 and is prevented from movinglongitudinally by the collars 49 which are positioned upon oppositesides of the said flange 14. The rear end of this driven shaft 46 isprovided with a gear 50 which constantly meshes wit-h the gear 43carried by the transversely extending shaft 41. rlihe driven shaft 46 isprovided with friction pinion 50 having formed integrally therewith thegrooved collar 51`which is rotatably connected to a ring carried by thelever 52. The friction pinion 50 and integrally formed collar 51 areslidably keyed to the driven shaft 46 and are moved longi- -ner shownbest in Figure l.

.tudinally upon the said shaft by the lever 52 which is pivoted at 53 toa suitable portion o f the floor board of the automobile.

There is further provided a spring element 54 which engages the groovedcollar 51 at one end and the journal bearing 48 at the other end fornormally positioning the friction pinion 50 as shown in Figure 4. It isto be understood that a second spiral spring may be positioned toencircle the driven shaft 46 and engage the friction pinion 50 :it oneend and the journal bearing 47 at the other end for aiding the spring 54to normally retain the said friction pinion intermediate the journalbearings 47 and 48. In this showing, however, it is intended that thespring 54 accomplish this purpose.

Extending at right angles to the forward end of the driven shaft 46 is astub shaft 55 which is supported by the journals 56 that are carried bythe bracket plate 44, in the manner shown. Suitably keyed to thisstubshaft is a `friction disk 57 which rotates within the cut outportion 45 formed in the bracket plate 44 and frictionally engages thefriction pinion 504 which is intended to be normally positioned at theaxis ofthe friction disk 57 and to be shifted laterally from this aXisin either` direction for forming a connection between the stub shaft 55and the driven shaft 46 for rotation of the latter in either direction.The stub shaft is provided with a gear 58 which is positionedsubstantially intermediate the journal bearings 56.

The bracket plate 44 is provided'with a pair of spaced journal bearings59 which are positioned in "proximity to the front and rear edges of thesaid plate and are adapted for supporting one end of the drive shaft 60which extends in parallelism with the vdrive shaft 9 ofthe automobileand the driven shaft 46. The drive shaft 60 is provided with a .wormgear 61 that is constantly in mesh with the gear 58 carried by the stubshaft 55. The forward end of the drive shaft 60 is journaled in asuitable bracket 62 which extends outwardly from the side of the enginebase 11 in the manrIhe forward end of the drive, shaft 60vis providedwith a pinion 63 formed integrally with the grooved ring 64 which isengaged by the roller carrying ends of the yoked lever 65. The driveshaft 60is further provided with a fixed ring 66 which engages the rearend of the spring 67 that engages at its forward end the grooved ring64. 1t is to be understood thatl this pinion 63 and ring 64 are slidablykeyed to thedrive shaft 60 and are moved longitudinally vthereof by theyoke lever for moving the pinion 63 into and out of mesh with the teeth12 formed on the fly wheel 12. it will be seen that the spring element67 normally forces the ring 64 and pinion 63 i-nto the proper positionfor being driven by the fly wheel 12. This construction necessitatessome means for retaining the yoke lever 65 in a suitable position forforcing the pinion 63 and ring 64 rearwardly.against theten sion of thespring 67 and for retaining them in this rearward position# he meansemployed for this purpose does not enter into the scope. of theinvention -Rand is therefore not shown in detail.

The driven shaft 46 is provided with a sheave 68 which is encircled adesired number of times by the flexible cable 69 which engages smallersheaves '70 suitably associated with the chassis of the automobile andadapted for leading the said flexible cable to allow a portion of thesame, designated by the numeral 69a to extend longitudinally of theautomobile frame. This section 69a is provided with the .stops 71 whichare adapted for engaging the lower end of the lever 52 which is employedfor shifting'the frictionpinion l in respect to the friction.

disk 57.

The operation of the device is as follows:

In Figuresrl1 and 2 the jack is shown in its' operative position. It isto be Lunderstood, however, that the standards 20'and 20a with theirassociated elements are to be drawn upwardly underneath the body of thevehicle when the jack is not in operation lI will, therefore, start thedescription of the operation of this j ack with the standards in theirinoperative positions. l By shifting the lever 65 so that the pinion 63is movedinto mesh with the teeth 12a formed on the fly wheel 12, thedrive shaft will be rotated when the power plant 11 is in operation. Itis to be understood that -the transmission gearing 10 is properlypositioned for disconnectingl the rear axle 6 from the power plant 11.Withthe power `plant 11 in operation, the stub shaft 156 will be rotatedby the driving4 shaft 60 and the driven shaft 46 may be rotated ineither direction at different speeds by shifting the friction pinion 50laterally ofthe axis of the friction disk 57 by means of the lever 52.:The rotation of this driven shaft 46 'in one direction will rotate the4transversely l ,extendin shaft i41. and the stub shaftv .16 forrotating the right and left hand thread-r ed screws 32 and 39 for movingthese screws forwardly of the tubular members 31 and y38. This outwardmovement of thescrews 32 and I 39 ,will force the standards 20 and 20adownwardly into the vertical positions vshownin Figure 2, Whenthestandard 20' is'. moved into this position, the disk'wheel 22 has been'movedjinto engagement with the ground Gand has elevated the right handrear wheel 8. The friction wheel or disk 26 has also been moved into`enga ementv With the side Wall 0f this .tire or w '69118,

When the standard 2ais moved into its very' tically extending position,the disk wheel x 34 has been moved intov engagement with the ground Gand has elevated the left hand.

'wheel 8 from'the said ground. The resili:

ently mounted head 36 has also been moved into engagement with the/sidewall of the tire carried by the wheel 8 for acting as a' It will now beseen .7'

brake for said wheel. that the rear of the vehicle has been elevated asuiicient amount'to place the rear wheels 8 above the ground. Therotationof the driven shaft 46 will cause the flexible cable 69 to Windaround the sheave 68 for moving the section 69n of this flexible cablein a suitable direction for causing one of the stop members 71-to engagethe lower end. of the lever 52 for shifting the friction pinion 50 to aposition in alignment with the axis of the friction disk-57 when theStandards with their disk wheels have been moved into their operativepositions and will thereby prevent further rotation of the driven shaft46. The lever 65 maythen be operated for moving the pinion 63 out ofmesh with the iy Wheel 12 and the transmission gearin 10 may be'suitably operated for driving t e rear. axle l6. It is -to be understoodthat the proper wheel 8, the disk wheel-22 will 'be' rotated forshifting the rear end of the vehicle, laterally in either directiondependingI upon the direction of rotation of the rear wheel 8. After asfar as desired, the transmission gearing 10 may be operated fordisconnecting the drive to the yrear axle 6. The connections anddirections of rotation of the various" shafts may be reversed for movingthe standthe rear end of the vehicle has beenv shifted ards 2O and 20aupwardly yinto their inoperaj i tive positions with the disk wheels 22and V34 outof engagement with the ground G, thereby'l allowing the rearvehicle wheels 8 lto again engage the ground.

- In, the modification shown in Fig.- 8,.a

transversely extending plate 72 is connect-lv ed,- by the divergingsupporting rods 73, to the lea-f springs 74 adjacent ythe rear axle 6.The various elements associated with the flange 14, shown in Figs. 2, 5,6 and 7, are similarly associated withjhe plate 72 and the elementscarried by the ends of the supportingbar 13, shown in Figs. 1 and 2,are' to vbe carried by the outer ends-of the supporting rods 73. Thismodification will necessitatethe provision of a universal joint in thedrivenv shaft 4&5 t9 @119W for the relative movement between the chassisand the rear axle.

'It is to be understood that l do not desire to limit myself to theassociating of this j acl( construction to the rear wheels o f ayvehicle for. the front wheels may be elevated with the same constructionand should the vehicle be of a type wherein the front wheelsl'aredriven, the front end of the vehicle could be shifted laterally with therear wheels. l

1t is to be understood that the form of this invention herein shown anddescribed is to be taken as a preferred example of the same, and thatvariouschanges in the shape,

size and arrangement of parts maybe resorted to Without depart-ing fromthe spirit of the invention or the scope of the subjoined claims.

Having thus described the invention,

\ what I claim is:

1. ln a device of the class described, the combination with anautomobile having af power plant and a fly wheel, of means includingground engaging wheels carried by the frame of said automobile forraising and lowering the rear wheels of the latter in respect to theground, means for connecting the first mentioned means with the flywheel of said power plant for operating the same, and means for drivingone of said ground engaging wheels from one of the rear wheels of theautomobile for moving the rear end of the latter laterally in eitherdirection.

matassa ground for raising one end of said automobile and means fordriving one of said ground engaging wheels from one of the rear Wheelsof the automobile for moving the rear `end of the latter laterally ineither direction.

3. In a device of the classe described, the combination with anauto-mobile having a power plant, a fly wheel, a transmission element, adiflerentialelement, and ground engaging wheels operatively connected tosaid differential, of a driven shaft and a drive shaft, means foroperatively connecting and disconnecting said drive shaft with said flywheel, means for connecting said driven shaft with said drive shaft forrotating the former in opposite-directions, standards pivotallyconnected to the frame of said automobile, a wheel carried by eachstandard,`a brake element carried by one of said standards for engagingone rear wheel of said automobile for preventing rotation of the same,means carried by the second standard for operatively engaging the secondrear wheel for rotating the wheel carried by that standard, means forcausing said driven shaft to pivot said standards for moving the latterinto their operative or inoperative positions with the brake elementengaging one rear wheel of the automobile' and the standard wheeldriving means engaging the second rear wheel of the automobilein such amanner that when the transmission gearing is operated for driving therear wheels of the automobile, the standard carried wheel will berotated for shifting the automobile laterally in either direction.

In testimony whereof lt aix my signature. THUMAS H. SHEETS.

